oj.uz

Submission #937692

# Submission time Handle Problem Language Result Execution time Memory
937692 2024-03-04T11:03:06 Z vjudge1 Sjeckanje (COCI21_sjeckanje) C++17
55 / 110
 33 ms 856 KB 
/* In the name of God */

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef long double ld;
typedef pair<int, int> PII;
typedef pair<ll, ll> PLL;
typedef vector<int> VI;
typedef vector<ll> VL;
#define PB push_back
#define MP make_pair
#define all(a) (a).begin(), (a).end()
#define endl '\n'
#define dbg(x) cerr << '[' << #x << ": " << x << "]\n"
#define dbg2(x, y) cerr << '[' << #x << ": " << x << ", " << #y << ": " << y << "]\n"
#define YES cout << "YES\n"
#define NO cout << "NO\n"

const ll INF = (ll)2e18 + 1386;
const ld EPS = 0.000000000000001;
const int MOD = 1e9 + 7;

inline int _add(int a, int b){ int res = a + b; return (res >= MOD ? res - MOD : res); }
inline int _neg(int a, int b){ int res = (abs(a - b) < MOD ? a - b : (a - b) % MOD); return (res < 0 ? res + MOD : res); }
inline int _mlt(ll a, ll b){ return (a * b % MOD); }
inline void fileIO(string i, string o){ freopen(i.c_str(), "r", stdin); freopen(o.c_str(), "w", stdout); }

const int MAXN = 3e3 + 23;

ll dp[MAXN][2], a[MAXN], dif[MAXN];

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0);
    int n, q;
    cin >> n >> q;
    for (int i = 1; i <= n; i++) cin >> a[i];
    while (q--){
        int l, r, x;
        cin >> l >> r >> x;
        for (int i = l; i <= r; i++) a[i] += x;
        for (int i = 2; i <= n; i++){
            dif[i] = a[i] - a[i - 1];
            if (i == 2){
                dp[i][0] = 0, dp[i][1] = abs(dif[i]);
                continue;
            }
            dp[i][0] = max(dp[i - 1][0], dp[i - 1][1]);
            if ((dif[i] > 0 && dif[i - 1] < 0) || (dif[i] < 0 && dif[i - 1] > 0)) dp[i][1] = dp[i - 1][0] + abs(dif[i]);
            else dp[i][1] = max(dp[i - 1][0], dp[i - 1][1]) + abs(dif[i]);
        }
        cout << max(dp[n][0], dp[n][1]) << endl;
    }
    return 0;
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct

Subtask #2
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 33 ms 604 KB Output is correct
8 Correct 33 ms 648 KB Output is correct
9 Correct 33 ms 600 KB Output is correct
10 Correct 32 ms 604 KB Output is correct
11 Correct 33 ms 604 KB Output is correct
12 Correct 31 ms 600 KB Output is correct

Subtask #3
0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 33 ms 604 KB Output is correct
8 Correct 33 ms 648 KB Output is correct
9 Correct 33 ms 600 KB Output is correct
10 Correct 32 ms 604 KB Output is correct
11 Correct 33 ms 604 KB Output is correct
12 Correct 31 ms 600 KB Output is correct
13 Runtime error 1 ms 856 KB Execution killed with signal 11
14 Halted 0 ms 0 KB -